混合态型三能级原子与单模光场相互作用时原子的偶极压缩效

混合态 型3能级原子与单模光场相互作用时原子的偶极压缩效应

摘要：本文采用全量子理论，运用时间演化算符方法先求出所求系统任意时刻的.密度算符，和原子的约化密度矩阵，以及原子偶极压缩的条件，数值计算地研究了混合态 型3能级与单模相干光场相互作用时原子的偶极压缩效应。最后讨论了原子初始的混合程度﹑相干光场的初始位相﹑光场的平均光子数﹑原子-场失谐量和偶合系数等对原子的偶极压缩的影响。
关键词： 型3能级原子；原子偶极压缩；单模光场；密度算符；约化密度矩阵
Atomic dipole squeezing about mixed state -type atom of three-level and single-mode optical field coherent interaction

Abstract : In this paper, quantum theory, the use of time evolution operator obtained by the first method for the system density operator of any time, and atomic reduced density matrix, and the atomic dipole squeezing conditions, numerical study of the mixed state -type atom of the three-level with single-mode optical field coherent interaction of atomic dipole squeezing effect. Finally, the atomic initial mixing , Coherent Light Field , the initial phase of the light field average photon number , atom-field detuning and the amount of coupling coefficient of the atomic dipole compression effects were told.
Keywords : -type three-level atom; atom dipole squeezing; single-mode field; Density operator; reduced density matrix